Phytophthora chlamydospora sporangia in water, showing internal proliferation. Bar is 20 µm.
Photo Gallery
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Phytophthora chlamydospora sporangium  |
P. pluvialis oogonium and antheridium  Oogonium and oospore with amphigynous antheridium |
P. ramorum sporangia  P. ramorum sporangia |
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P. pinifolia on Pinus radiata  Pinus radiata, note grey and collapsed needle bases |
P. kernoviae leaf wilt  Wilted leaf of infected rhododendron |
P. agathidicida growth on CMA  Diffuse, non-patterned, colony morphology of ICMP 16471 (the original “Gadgil isolate”) after 10-days incubation at 20°C in the dark |
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P. ramorum leaf symptoms on tan oak  Tip symptoms on tanoak seedling (Notholithocarpus densiflorus). |
P. megasperma colony morphology on PDA  Colony morphology on PDA at 7 days |
P. pluvialis - appearance of new growth  Tufted appearance of new growth from surviving buds on Douglas-fir, one year after defoliation. |
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P. tentaculata oospores and antheridia  Paragynous antheridium attached to oogonium with oospore |
P. cinnamomi hyphal swelling  P. cinnamomi hyphal swelling (or thin walled chlamydospores) |
P. kernoviae leaf wilt  Necrosis of rhododendron leaves. |